wpf防止打开程序多个窗口
private System.Threading.Mutex mutex; public App() { this.Startup += new StartupEventHandler(App_Startup); } private void App_Startup(object sender, StartupEventArgs e) { bool ret; mutex = new System.Threading.Mutex(true, "name", out ret); if (!ret) { MessageBox.Show("该系统已打开，请勿重复开启！", "", MessageBoxButton.OK, MessageBoxImage.Warning); Environment.Exit(0); } }
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